Mammo, A.Yohannes, B.Z.2007-11-121991-04-012007-11-121991http://hdl.handle.net/10625/11209Text1 digital file (157 p. - various pagings: ill.)Application/pdfenPUMPSHAND TOOLSENGINEERING DESIGNAPPROPRIATE TECHNOLOGYETHIOPIAMAINTENANCE AND REPAIRTECHNICAL REPORTSFinal Technical Report